40357779

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 32632941

約数列:

[1, 3, 7, 11, 17, 21, 33, 43, 51, 77, 119, 129, 187, 231, 239, 301, 357, 473, 561, 717, 731, 903, 1309, 1419, 1673, 2193, 2629, 3311, 3927, 4063, 5019, 5117, 7887, 8041, 9933, 10277, 12189, 15351, 18403, 24123, 28441, 30831, 44693, 55209, 56287, 71939, 85323, 113047, 134079, 168861, 174709, 215817, 312851, 339141, 524127, 791329, 938553, 1222963, 1921799, 2373987, 3668889, 5765397, 13452593, 40357779]

約数ペア:

[(1, 40357779), (3, 13452593), (7, 5765397), (11, 3668889), (17, 2373987), (21, 1921799), (33, 1222963), (43, 938553), (51, 791329), (77, 524127), (119, 339141), (129, 312851), (187, 215817), (231, 174709), (239, 168861), (301, 134079), (357, 113047), (473, 85323), (561, 71939), (717, 56287), (731, 55209), (903, 44693), (1309, 30831), (1419, 28441), (1673, 24123), (2193, 18403), (2629, 15351), (3311, 12189), (3927, 10277), (4063, 9933), (5019, 8041), (5117, 7887)]